Brocade Network OS Administrator’s Guide v4.1.1 - Manual (Page 80)

NOTE
If the new node is not yet VCS enabled, you can do so at the same time you assign the RBridge ID.
Refer to the vcs command options in the Network OS Command Reference.
Merging two logical chassis clusters
You can merge two logical chassis clusters that have the same VCS ID. Follow these steps:
1. Make all required physical connections between the two independent clusters.
2. Decide which cluster should retain the configuration after the merge. Only one configuration can be
retained.
3. On the cluster whose configuration will not be retained, issue the copy default-config startup-
config command so that the nodes in this cluster will reboot with the default configuration.
4. Reboot all nodes in each cluster. The logical chassis cluster whose configuration is being retained
recognizes the nodes from the other cluster as new nodes and adds them accordingly.
5. Re-apply the configuration to the cluster whose configuration was not retained.
Changing an RBridge ID on a switch within a fabric
It may become necessary to change the RBridge ID number on a switch that rebooted and has
become orphaned from the cluster.
1. Backup the global configuration before changing the RBridge ID, because the local configuration
will be reset to default values. Refer to Backing up configurations on page 104.
2. On the rebooted switch, execute the chassis disable command.
switch# chassis disable
3. From the fabric principal switch, execute the no vcs enable rbridge-id rbridge-id command, where
rbridge-id is the switch that was orphaned.
switch# no vcs enable rbridge-id 3
4. On the rebooted switch, execute the vcs rbridge-id rbridge-id command, where rbridge-id is the
RBridge you want to use.
5. The VCSID should already be set, if it's not set it with the vcs rbridge-id rbridge-id.
6. Reboot the orphaned switch.
The following behavior will take effect after the switch reboots:
• All interfaces will be in shutdown state. You must perform a no shutdown command on ISL
interfaces before the switch will rejoin the cluster.
• The original configuration will be lost and the switch will have a default configuration when it
rejoins the cluster with the new RBridge ID.
7. Use the show vcs detail command to verify that the switch is in the fabric.
switch# show vcs detail
Config Mode : Local-Only
VCS ID : 1
Total Number of Nodes : 6
Node :1
Serial Number : BKN2501G00R
Condition : Good
Status : Connected to Cluster
VCS Id : 1
Rbridge-Id : 38
Co-ordinator : NO
WWN : 10:00:00:05:33:52:2A:82
Switch MAC : 00:05:33:52:2A:82
FCF MAC : 0B:20:B0:64:10:27
Switch Type : BR-VDX6720-24-C-24
Internal IP : 127.1.0.38
Management IP : 10.17.10.38
Node :2
Serial Number : BZA0330G00P
Merging two logical chassis clusters
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